Ultrasonic flaw detection device and method

JP2025091666APending Publication Date: 2025-06-19HITACHI GE NUCLEAR ENERGY LTD
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Patent Information

Application Number
JP2023207059
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-12-07
Publication Date
2025-06-19

AI Technical Summary

Technical Problem

Existing ultrasonic flaw detection methods struggle to easily confirm minute floating of ultrasonic elements from inspection objects, particularly when surface undulations occur, leading to difficulties in determining and correcting for non-close contact states.

Method used

An ultrasonic flaw detection apparatus and method that includes an ultrasonic probe with a transmission/reception control device and an arithmetic device with a processor. The processor measures the dead time width from recorded waveforms to determine if the ultrasonic element is in close contact with the inspection object, allowing for easy confirmation of minute floating.

Benefits of technology

This solution enables easy confirmation of minute floating of ultrasonic elements, improving the reliability of inspection results by simplifying the adhesion determination process and reducing image distortion due to non-close contact states.

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Abstract

To provide an ultrasonic flaw detection device etc., capable of easily confirming slight flotation of an ultrasonic element from an inspection body.SOLUTION: An ultrasonic flaw detection device 100 comprises an ultrasonic probe 101, a transmission / reception controller 103, and an arithmetic unit 104. The ultrasonic probe 101 has an ultrasonic element 102 sending and receiving an ultrasonic wave. The transmission / reception controller 103 controls the transmission and reception of the ultrasonic wave by the ultrasonic element 102. The arithmetic unit 104 has a processor which processes a recorded waveform of the ultrasonic wave. The processor measures dead-zone time widths (402, 602) from the recorded waveform. The processor determines whether the ultrasonic element 102 is in contact with an inspection body 301 from the dead-zone time widths (402, 602).SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

  • Jikikogakuhyojihohosochi

    JP1976055692A